This is not a virus but a Windows-based trojan horse.
There are two variants of the backdoor. They have been circulated in
e-mail and newsgroups postings as attachment files called PICTURE.EXE
and MANAGER.EXE, sized 353792 bytes and 348672 bytes. Both of them
copy themselves to the Windows directory as a file called NOTE.EXE
file name and register themselves to be executed every time Windows
boots up.
After this, the trojan gathers information from the machine, including
username and password, copies them to an encrypted DAT file and tries
to e-mail that file to addresses abreb@hotmail.com and chinafax@263.net.
This trojan does not spread by itself. It can be removed simply by
deleting the NOTE.EXE file and the original carrier file. It is
recommended that you change your password if you believe to be
affected by this trojan.
Backnote was widespread between Christmas and New Year 1998.
